My main research interests are Shape and functionality of nanoparticles: What determines the details of a nanoparticles shape, and how does this influence its catalytical properties. Hot-electron assisted surface reactivity: Is it possible to use a nanostructured device to generate hot electrons (electrons with an energy of a few electron volts) and use them to trigger chemical reactions, which would otherwise only occur at higher temperature (if at all)? Large-scale molecular dynamics simulations of the mechanical properties of nanocrystalline metals and metallic glasses.